78475325 has 12 divisors (see below), whose sum is σ = 97422708. Its totient is φ = 62707200.

The previous prime is 78475321. The next prime is 78475343. The reversal of 78475325 is 52357487.

It can be written as a sum of positive squares in 6 ways, for example, as 276676 + 78198649 = 526^2 + 8843^2 .

It is not a de Polignac number, because 78475325 - 2² = 78475321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78475321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33389 + ... + 35661.

It is an arithmetic number, because the mean of its divisors is an integer number (8118559).

Almost surely, 2^78475325 is an apocalyptic number.

It is an amenable number.

78475325 is a deficient number, since it is larger than the sum of its proper divisors (18947383).

78475325 is a wasteful number, since it uses less digits than its factorization.

78475325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664 (or 3659 counting only the distinct ones).

The product of its digits is 235200, while the sum is 41.

The square root of 78475325 is about 8858.6299730827. The cubic root of 78475325 is about 428.1320177513.

The spelling of 78475325 in words is "seventy-eight million, four hundred seventy-five thousand, three hundred twenty-five".